In this article, we are going to see how to get the number of characters in a string in R Programming Language. The number of characters in a string refers to the length of the string.
Examples:
Input: Geeksforgeeks
Output: 13
Explanation: Total 13 characters in the given string.Input: Hello world
Output: 11
This can be calculated using the below-mentioned functions:
- Using nchar() method
- Using str_length() method
- Using stri_length() method
Method 1: Using nchar() method.
nchar() method in R programming is used to get the length of a string.
Syntax:
nchar(string)
Parameter: string
Return: Returns the length of a string
Example: To calculate length
# Given String
gfg <- "Geeks For Geeks"
# Using nchar() method
answer <- nchar(gfg)
print(answer)
Output
[1] 15
The string "Geeks For Geeks" has 15 characters, including spaces.
This method can be used to return the length of multiple strings passed as a parameter.
nchar(c("Hello World!","Akshit"));
Output
[1] 12 6
Method 2. Using str_length () method.
The function str_length() belonging to the ‘stringr’ package can be used to determine the length of strings in R.
Syntax:
str_length (str)
Parameter: string as str
Return value: Length of string
Example: To find length
# Importing package
library(stringr)
# Calculating length of string
str_length("hello")
Output:
[1] 5This method can be used to return the length of multiple strings passed as a parameter.
library(stringr);
str_length(c("Hello World!","Akshit"));
Output:
[1] 12 6Method 3. Using stri_length() method.
This function returns the number of code points in each string.
Syntax:
stri_length(str)
Parameter: str as character vector
Return Value: Returns an integer vector of the same length as str.
Example:
stri_length(c("Akshit"));
Output:
[1] 6This method can be used to return the length of multiple strings passed as a parameter.
library(stringi);
stri_length(c("Hello World","Akshit"));
Output:
[1] 11 6